package kr.hkit.powerjava.chapter24;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyFileStream {
	public static void main(String[] args) {
		BufferedInputStream fis = null;
		BufferedOutputStream fos = null;
		long start, end;
		try {
			fis = new BufferedInputStream( new FileInputStream("input.txt"));
			fos = new BufferedOutputStream( new FileOutputStream("output.txt",false));
			start = System.currentTimeMillis();
			int c;
			while((c = fis.read()) != -1) {
				System.out.printf("%s",(char)c);
				fos.write(c);
			}
			end = System.currentTimeMillis();
			
			System.out.println("걸린시간 "+ (end - start));
			
			System.out.println("파일존재");
		} catch (FileNotFoundException e) {
			System.out.format("%s%n", "파일이 존재하지 않음");
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if(fis != null) {
				try{fis.close();} catch(Exception e) {}
			}
			if(fos != null) {
				try{fos.close();} catch(Exception e) {}
			}
		}
	}
}
